Configuration of an IPv6 IPsec VPN follows the same sequence as for an IPv4 route-based VPN: phase 1 settings, phase 2 settings, security policies and routing.
By default IPv6 configurations to not appear on the Web-based Manager. You need to enable the feature first.
To enable IPv6
1. Go to System > Admin > Settings.
2. In the Display Options on GUI section, select IPv6.